This document describes the various replication files, supplemental reports,
and updated materials associated with Jacoby, William G. and Saundra K.
Schneider (2009) "A New Measure of Policy Spending Priorities in the American
States." POLITICAL ANALYSIS 17: 1-24.


  I. FILES USED TO CARRY OUT THE UNFOLDING ANALYSIS DESCRIBED IN THE ARTICLE

     "spending data, 1982-2005.txt"

        This file contains the yearly state spending figures used as input
        data for the unfolding analysis reported in the PA article.


     "Documentation, spending dataset, 1982-2005.pdf"

        This file contains the codebook for the state spending data file.


     "Unfolding, SAS macro, 9-14-08.txt"

        This file contains the "cgmunf" SAS macro for carrying out the 
        metric unidimensional unfolding analysis using the CGM algorithm.


     "SAS session for unfolding analysis.txt"

        This file contains the SAS statements used to carry out the 
        metric unidimensional unfolding analysis. It requires the 
        "cgmunf" macro and the "spending data, 1982-2005.txt data.



 II. UNFOLDED YEARLY STATE POLICY PRIORITY SCORES AND POLICY SCORES 
     FROM METRIC UNIDIMENSIONAL UNFOLDING ANALYSIS REPORTED IN PA
     ARTICLE

     "state priority scores.txt"

        Text file containing yearly state policy priority scores. 
        These scores have been transformed so that the overall 
        mean (across states and years) is zero, and measurement 
        units are proportions of state spending allocated to 
        collective goods policies.


     "Documentation of final state point dataset.pdf"

        Codebook for data contained in "state priority scores.txt"


     "policy scores.txt"

        Text file containing unfolded scores for policy points. 
        These scores have been adjusted using the same 
        transformation as that applied to the state policy priority
        scores contained in "state priority scores.txt", in order
        to keep the state points and the policy points on
        the same scale.


     "Documentation of final policy point dataset.pdf"

        Codebook for data contained in "policy scores.txt"

        

III. FILES USED TO CREATE THE GRAPHS IN THE POLITICAL ANALYSIS ARTICLE

     "Creating Figures 1 and 2.R"

        File containing the R script to create Figures 1 and 2 from
        the PA article. This R session uses data contained in files
        "Raw policy points, with names.txt", "State summary data, 
        with names.txt", and "State summary data 2, with names.txt".


     "Raw policy points, with names.txt"

        Text file containing the unfolded scores for the nine
        policy areas. The first line of the file is a header
        record giving variable names. After that, each line
        contains two data values, separated by whitespace. The
        first value on each line is the policy area (character
        variable, value enclosed in double quotes) and the 
        second is the unfolded score for the policy area. Note
        that these are "raw" scores- they have not been transformed
        to enhance interpretation (the transformation is 
        carried out in the R session).


     "State summary data, with names.txt"

        Text file containing summary statistics for unfolded state
        points. These are "raw" scores- they have not been transformed
        to enhance interpretation (the transformation is carried
        out in the R session). The first line in the file is a
        header record with variable names. On all subsequent lines, 
        adjacent variable values are separated by whitespace. 
        On each line, the variables appear in the following order:

          state  Two-letter USPS state abbreviation

           mean  Mean state point value, calculated across 1982-2005

            min  Minimum state point value, across 1982-2005

            max  Maximum state point value, across 1982-2005

            std  Standard deviation of state point values, 
                 calculated across 1982-2005


     "State summary data 2, with names.txt"

        Text file with contents identical to those of "State summary
        data, with names.txt" except that the first variable on
        each line (after the header record) gives the full
        state name (enclosed within double quotes) rather than
        the two-letter abbreviation.



     "Creating Figures 3 and 4.R"

        File containing the R script to create Figures 3 and 4 from
        the PA article. This R session uses data contained in file
        "Raw state points, with names.txt".


     "Raw state points, with names.txt"

        Text file containing "raw" state ideal points (i.e., they
        have not been transformed to facilitate interpretation;
        the transformation is carried out in the R session). The
        first line is a header record with variable names. Each
        subsequent line contains values for three variables, 
        separated by whitespace. The variables on each line are 

              state  Two-letter USPS state name abbreviation

               year  Year of observation, from 1982 through 2005

        state.point  Unfolded ideal point obtained from metric
                     unidimensional unfolding analysis


     "Creating Figure 5.R"

        File containing R script to create the panels of 
        Figure 5 from the PA article. This R session uses data
        contained in file "All measures, with names.txt"


     "All measures, with names.txt"

        Text file containing various measures of state policy. 
        First line is a header record containing variable names.
        On subsequent lines, adjacent values are separated
        by whitespace. Codebook for the data file is contained
        in file "Documentation, all measures dataset.pdf".


     "Documentation, all measures dataset.pdf"

        Codebook for data contained in "All measures, with names.txt".



 IV. SUPPLEMENTAL REPORTS TO ACCOMPANY THE POLITICAL ANALYSIS ARTICLE

     "Alt Baselines Report.pdf"

        This file contains the supplemental report, "Alternative 
        Baselines for Relative Expenditurs in the Unfolding
        Analysis of State Policy Spending."


     "Alt Interps Report.pdf"

        This file contains the supplemental report, "Considering
        Alternative Substantive Interpretations of the Unfolded
        Scale."


     "Comparing Models Report.pdf"

        This file contains the supplemental report, "Comparing
        Alternative Scaling Models for State Policy 
        Expenditures."


     "Stability of Ests.pdf"

        This file contains the supplemental report, "Stability 
        of Point Estimates in the Unfolding Analysis of State 
        Policy Spending."


     "Empirical Relationships Report.pdf"

        This file contains the supplemental report, "Empirical
        Relationships Between State Spending Priorities and
        Other Political Characteristics."



  V. UPDATED UNFOLDING ANALYSIS TO COVER 1982 THROUGH 2011

     "cgmunf_0.9.2.tar.gz"

        R package to carry out metric unidimensional unfolding 
        using the CGM (conditional global mimimum) algorithm.


     "spending data, 1982-2011.txt"

        Text file containing yearly state spending data. The
        file contains one line per observation (state/year)
        and adjacent variable values are separated by 
        whitespace. Codebook for the data file is contained
        in "Documentation, spending dataset, 1982-2011.pdf"


     "spending data, 1982-2011, with names.txt"

        Text file containing yearly state spending data. The
        contents of this file are identical to that of 
        "spending data, 1982-2011.txt" except that the 
        first line in the file is a header record giving 
        variable names. Codebook for the data file is contained
        in "Documentation, spending dataset, 1982-2011.pdf"


     "Documentation, spending dataset, 1982-2011.pdf"

        Codebook for data contained in files "spending data, 
        1982-2011.txt" and "spending data, 1982-2011, 
        with names.txt".


     "Unfold 1982-2011 spending data.R"

        Text file containing R session that carries out metric
        unidimensional unfolding analysis of state spending
        data from 1982 through 2011. The R session requires
        the "cgmunf" package, and it uses data from the
        "spending data, 1982-2011, with names.txt" file.
        The R session writes new data files, "state ideal
        points, 1982-2011.txt" and "adjusted state ideal
        points, 1982-2011.txt", and creates the trellis
        display that is contained in file, "states1.pdf".


     "state ideal points, 1982-2011.txt"

        This file contains the "raw" yearly ideal points
        for the states from 1982 through 2011. These values
        have NOT been transformed to facilitate interpretation.
        Most analyses should employ the transformed policy
        priority scores and NOT the raw scores contained
        in this file. Each line represents a single state/year
        and contains three values, separated by whitespace. 
        On each line of the data file, the variable values
        appear in the following order:

           Two-letter USPS state abbreviation

           Year

           Unfolded ideal point for state/year



     "adjusted state ideal points, 1982-2011.txt"

        This file contains the yearly policy priority
        scores for the states from 1982 through 2011. 
        These are ideal points from the unfolding 
        analysis that have been transformed to a mean
        of zero and units that equal proportions of 
        yearly state spending devoted to collective
        goods policies. These adjusted state values
        are the policy priority scores that should be
        employed in most analyses. 


     "states1.pdf"

        This file contains a trellis display showing the yearly 
        state ideal points for each state. The display contains
        the "raw" ideal points rather than the adjusted policy
        priority scores. Note that this only affects the specific
        values shown on the vertical axis of the graph.


        
        

        

        